Minnesota · DNR survey data
Iowa Lake
Iowa Lake covers 705 acres in Martin County, running to 9.4 feet, last surveyed by the DNR in 2023. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.
DNR survey data
Fish species
WalleyeStocked · 2025One of the best around20.5per gill net10"Typical19"Biggest
Lengths measured · 52 fish
Recent · 2023Lengths measured · 52 fish
2023Lengths measured · 33 fish
1998Lengths measured · 16 fish
1994No recent survey rating.
BluegillJust a few1.4per trap net6"Typical8"Biggest
Lengths measured · 13 fish
Recent · 2023Lengths measured · 13 fish
2023Lengths measured · 1 fish
2017Only 1 fish measured that year — too few to read as a shape.
Lengths measured · 1 fish
2005Only 1 fish measured that year — too few to read as a shape.
Lengths measured · 5 fish
1998Only 5 fish measured that year — too few to read as a shape.
CrappieFair numbers16.4per trap net6"Typical11"Biggest
Lengths measured · 191 fish
Recent · 2023Lengths measured · 191 fish
2023Lengths measured · 4 fish
2017Only 4 fish measured that year — too few to read as a shape.
Lengths measured · 68 fish
2005Lengths measured · 177 fish
1998Yellow perchStocked · 2018Excellent numbers20per gill net8"Typical9"Biggest
Lengths measured · 53 fish
Recent · 2023Lengths measured · 53 fish
2023Lengths measured · 3 fish
2017Only 3 fish measured that year — too few to read as a shape.
Lengths measured · 319 fish
2005Lengths measured · 93 fish
1998Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.
DNR stocking records
Stocking history
| Year | Species | Stocked |
|---|---|---|
| 2025 | Walleye | 366,128 fry |
| 2022 | Northern Pike | 71,091 fry |
| 2021 | Northern Pike | 50 adults |
| 2021 | Walleye | 366,000 fry |
| 2018 | Yellow Perch | 4,318 adults |
Recent reports
Iowa Lake fishing reports
Recent reports on Iowa Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.
Public water access
Getting on the water
- Iowa Lake (trailer launch)
Within 30 miles
Nearby lakes
- South Silver Lake · 252 ac · 0.7 mi
- Willmert (main bay) Lake · 335 ac · 3.4 mi
- Okamanpeedan Lake · 2,268 ac · 4.9 mi
- East Chain Lake · 481 ac · 5.7 mi
- Bright Lake · 639 ac · 6.2 mi
- Amber Lake · 182 ac · 6.6 mi
- Hall Lake · 548 ac · 7.7 mi
- Clear Lake · 267 ac · 8.8 mi
Quick answers
Frequently asked questions
Is there a depth map for Iowa Lake?
The Minnesota DNR has not published bathymetry for Iowa Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Iowa Lake?
The most recent DNR survey (2023) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, channel catfish, white bass.
Does Iowa Lake have a public access?
Yes. Iowa Lake has one public access site: Iowa Lake (trailer launch).
Is Iowa Lake stocked?
Yes. The DNR stocked walleye in 2025; the stocking table on this page lists every year back to 2018.
When was Iowa Lake last surveyed?
The Minnesota DNR last surveyed Iowa Lake in 2023, the most recent of 6 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .